\begin{table}[htbp]\centering \def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi} \caption{Number of events evaluated in different event study specifications \label{tab:events}} \begin{tabular*}{\hsize} {@{\hskip\tabcolsep\extracolsep\fill}l*{3}{c}} \toprule
            &       State&  MSCZ pairs&    BC pairs\\
\midrule
Combined MW increases&          45&          34&          42\\
All underlying MW increases&         135&          97&         122\\
Pairs in regression&           .&          91&         420\\
Pairs with treatment variation&           .&          62&         261\\
 \hline\hline \end{tabular*} {\centering \caption*{\begin{footnotesize} Table notes put in separately \end{footnotesize}}} \end{table} 
